<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="login.css">
    <title>Document</title>
</head>
<body><form action="" class="login">
    <p>Login</p>
    <input type="text" placeholder="用户名">
    <input type="password" placeholder="密码">
    <input type="submit" class="btn" value="登  录">
</form>
    
</body>
</html>